75% of transactions settled on Base in the past month (as of April 2026).

Integrated with World ID via AgentKit toolkit for AI agents to cryptographically prove human identity, handles payments for agentic commerce, backed by Sam Altman.

A 72-hour quiz and creative marketing campaign contest was launched on March 6, 2026, ending on March 9, 2026, asking participants to demonstrate understanding of Stronghold's security features, tokenomics, and pricing model while proposing marketing strategies and new feature ideas.

Uses dynamic trading fees on $STRONG ranging from 1–3%, allocated 60% to Stronghold team in WETH, 20% to Citadel team in WETH, and 20% to treasury, of which 50% funds grants, development, and partnerships in WETH while the remaining 50% is burned weekly in $STRONG.

Adds image-based prompt injection detection via Citadel's premium model at no additional API cost. Chose Base as primary home for agentic finance with Solana support coming.

Processed over 50 million transactions.

Integrated Stripe for onchain agentic payments on Base using USDC, enabling traditional enterprises to accept USDC payments from AI agents, including tax and refund handling.

Powers trading signal functionality for Waveform AI trading agent in collaboration with SQDGN.

Integrated with Simmer, an AI-native prediction markets platform, where x402 protocol enables AI agents to autonomously pay for data feeds and intelligence services, functioning both as payment method for agents consuming external feeds and as revenue mechanism when external agents pay Simmer for forecasts.

Featured prominently in ETHGlobal's developer activity report for November-December 2025, with x402-powered agentic payments and x402-based intent execution highlighted as key drivers of the AI x Crypto category containing 96 projects.

Collaborates with Brevis and Pieverse to implement ZK-powered, timestamped receipts and provable execution for AI payments on x402b.

Processed over $50M in transactions during the past 30 days ending December 24, 2025.

Accounts for 30% of trading volume on x402 protocol.

Brought 22% of unique users to x402 protocol.

Launches Cobbee on Base for instant USDC payments with 30-second settlement and 5% fees. Participates in a 7-day hackathon hosted by Stacks and DoraHacks starting 2026-02-09, offering a $3,000 prize.

UIUI platform confirms its AI-generated applications and agents are fully integrated with x402 protocol for on-chain agentic interaction.

CARV releases Cashie, an ERC8004 alpha AI Being that handles onchain payouts powered by x402 protocol and CARV ID for multi-linked identity verification.

The protocol bridge records only 19 transactions in 26 hours, with 95% of volume flowing to Solana rather than remaining on Base network.

An AI influencer agent launches on Pearl (the AI agent app store) on Base network, integrating x402 protocol for agent-to-agent commerce and LLM access payments, alongside partnerships with Safe, Web3Auth, Transak, and RelayProtocol.

Circle partnered with Openmind for USDC payments for AI and the machine economy, integrated into Circle's Nanopayments feature as the protocol layer.

The first NFT collection launches on x402 protocol using thirdweb integration, enabling automated NFT minting through a single API call with pay-per-call functionality.

Pearl v1 launches, eliminating manual API key setup requirements for Prediction Agent users and enabling independent LLM resource access through x402 protocol.

The Moon Clave partners with x402 protocol to provide automated USDC rewards and x402 distribution through their hold-to-earn mechanism.

x402 protocol integrates with Covalent's SpeedRun program, enabling builders to deploy one-click smart contracts and make on-chain payments while earning instant $CXT token rewards.

Beep protocol launches on Sui Network, featuring a402 Protocol as an implementation of Coinbase's x402 standard for HTTP-native on-chain payments, with support for USDC and planned expansion to SUI, Walrus, and xBTC.

Protocol introduces multichain swap functionality supporting deposits from Solana, Base, BSC, and Ethereum with one-click swaps to any c-chain asset via Arena wallet.

LLM wallet product launches using MCP technology, enabling any Large Language Model to operate its own crypto wallet for x402 payments and blockchain transactions.

Teneo Protocol's Agent SDK integrates with x402 protocol to enable AI agents to conduct instant commerce with sub-cent micropayments per query.

Trading launches on Ourbit exchange at 04:00 UTC on October 31, 2025, with deposits already open.

$REL token launch scheduled for November 4, 2025, with early allocations available through a Blips campaign on tgmetrics.

x402 and agents are being discussed at SolanaConf (Solana Conference), with inquiry about specific speakers at the event.

Gasless micropayments feature announced for prediction markets, with $sora prediction market launching on BSC using x402 technology and reaching $9.9m market cap.

Launched on Base and featured on its official ecosystem site. Integrates Coinbase's Payments MCP for AI agent wallet access and payments, supporting agent-based economic models for trading.

Citi and Coinbase announce collaboration with x402 protocol focused on stablecoin utility and adoption.

PING, a meme coin built on x402 protocol, lists on HTX Innovation Zone Spot Market with deposits open and trading starting soon.

trends.fun co-hosts "x402 索拉拉 Hackathon" with Crossmint, Solana, Corbits, and Merit Systems on 2026-04-02 at Solana Skyline office, focused on building with x402 protocol on Solana.

a16z's State of Crypto report features x402 protocol as emerging infrastructure for autonomous agent payments, with the autonomous agent economy projected to reach $30T by 2030.

x402 enables cross-chain USDC payments for video creation based on onchain events from LootSurvivor game.

Cloudflare adds x402 to Agents SDK and integrates into WordPress product on Base; Vercel launched x402-mcp SDK; Merit Systems launched x402scan explorer and ai-x402 SDK for AI resource coverage.

Echo's AI resources are now available behind x402 payment infrastructure, with VercelAI SDK wrapped to enable USDC to AI purchases for developers.

Integrated JIT Routing and Solana liquidity from DFlow and Corbits_Dev, and Solana Foundation's agentic payments gateway for merchant stablecoin acceptance.

Noble announces launch of Noble EVM AppLayer in the coming weeks, with x402-type integrations cited as key reason for excitement about the stablecoin chain's payments infrastructure.

x402 powers programmable payments for SpeedRun by Covalent, a Prompt-to-Earn platform where users deploy onchain apps and earn rewards. Cohort 2 opens for participants with additional slots releasing next week.

x402 wraps dosco's ax library to enable on-demand inference for payment-enabled agents, with release scheduled for this week including examples.

Collaboration with ERC-8004 protocol revealed, positioning the project as a stablecoin payment layer for agents compatible with multiple protocols including MCP, A2A, ERC-8004, and AP2.

Launched x402scan block explorer, enabling AI agents to discover and pay for futures, perpetuals, options, and predictions data using USDC on Base or Solana without requiring API keys; actively seeking contributors.

Base joined x402 foundation with Coinbase, Cloudflare, and Shopify to build infrastructure for the agentic economy.

New router enables signature-based payments for cloud compute access, currently on Base with planned expansion to Solana and Starknet.

Payment protocol integrates with Heurist platform.

Coinbase launched a payment standard for machine-to-machine crypto transactions via HTTP protocol, enabling instant settlement for data, APIs, or compute using the HTTP 402 "payment required" code for micropayments with sub-cent L2 fees on 2026-02-11, charging $0.001 per query ($1 per 1,000 queries) paid programmatically via native x402 protocol, with agent costs estimated at $10-50 per month.

New onchain payments protocol launches, enabling keyless API access for developers and AI agents.